He’s trying to lure Trump into an interview, so Mueller can indict him for lying if he doesn’t get a date correct, or mixes up the order of some events.
Otherwise, he’ll go with some stupid report about how firing Comey obstructed justice. Which is stupid because there was no crime to find, so Trump had no motive to stop them.
That indictment of the Russian hackers was an embarrassment. Pages and pages of bullshit about the election, but the actual charges had nothing to do with the election.